TPS7B4260-Q1

Name: TPS7B4260-Q1
Brand: TI
SKU: TPS7B4260-Q1
Price: 0.653 USD

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具有回饋功能和 6mV 追蹤公差的車用 300mA 40V 電壓追蹤低壓差穩壓器

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產品規格表

document-pdfAcrobat TPS7B4260-Q1 Automotive, 300mA, 40V, Voltage-Tracking LDO With 6mV Tracking Tolerance datasheet (英文) PDF | HTML

產品詳細資料

Output options

Tracking Output

Iout (max) (A)

0.3

Vin (max) (V)

40

Vin (min) (V)

3.3

Vout (max) (V)

40

Vout (min) (V)

2

Rating

Automotive

Noise (µVrms)

150

Iq (typ) (mA)

0.055

Thermal resistance θJA (°C/W)

48

Load capacitance (min) (µF)

1

Regulated outputs (#)

1

Features

Reverse Current Protection, Reverse voltage protection, Short-to-battery protection

Dropout voltage (Vdo) (typ) (mV)

330

Operating temperature range (°C)

-40 to 125

Output options

Tracking Output

Iout (max) (A)

0.3

Vin (max) (V)

40

Vin (min) (V)

3.3

Vout (max) (V)

40

Vout (min) (V)

2

Rating

Automotive

Noise (µVrms)

150

Iq (typ) (mA)

0.055

Thermal resistance θJA (°C/W)

48

Load capacitance (min) (µF)

1

Regulated outputs (#)

1

Features

Reverse Current Protection, Reverse voltage protection, Short-to-battery protection

Dropout voltage (Vdo) (typ) (mV)

330

Operating temperature range (°C)

-40 to 125

HSOIC (DDA)

8

29.4 mm² 4.9 x 6

AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, TA
- Junction temperature: –40°C to +150°C, TJ
Wide input voltage range:
- Absolute maximum range: –40V to +45V
- Operating range: 3.3V to 40V
Output voltage:
- Wide operating range: 2V to 40V
- Output voltage flexibility: VOUT can be scaled to values that are higher or lower than the reference using external resistors in a voltage divider configuration
Maximum output current: 300mA
Very tight output-tracking tolerance: 6mV (max)
Low dropout voltage: 330mV at 200mA
Combined enable and reference functionalities
Low quiescent current at light load: 55µA
Stable over a wide range of ceramic output capacitor values:
- COUT range: 1µF to 100µF
- ESR range: 1mΩ to 2Ω
Integrated protection features:
- Reverse current protection
- Reverse polarity protection
- Overtemperature protection
- Protection against output short circuit to ground and supply
Available in the HSOIC (DDA) low thermal resistance (RθJA = 48°C/W) 8-pin package

AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, TA
- Junction temperature: –40°C to +150°C, TJ
Wide input voltage range:
- Absolute maximum range: –40V to +45V
- Operating range: 3.3V to 40V
Output voltage:
- Wide operating range: 2V to 40V
- Output voltage flexibility: VOUT can be scaled to values that are higher or lower than the reference using external resistors in a voltage divider configuration
Maximum output current: 300mA
Very tight output-tracking tolerance: 6mV (max)
Low dropout voltage: 330mV at 200mA
Combined enable and reference functionalities
Low quiescent current at light load: 55µA
Stable over a wide range of ceramic output capacitor values:
- COUT range: 1µF to 100µF
- ESR range: 1mΩ to 2Ω
Integrated protection features:
- Reverse current protection
- Reverse polarity protection
- Overtemperature protection
- Protection against output short circuit to ground and supply
Available in the HSOIC (DDA) low thermal resistance (RθJA = 48°C/W) 8-pin package

The TPS7B4260-Q1 is a monolithic, integrated, low-dropout (LDO) voltage tracker. The device is available in an 8-pin HSOIC package. The TPS7B4260-Q1 is designed to provide power supply to off-board sensors in an automotive environment. The high 300mA current rating of the device potentially allows a single device to power multiple off-board sensors simulataneously. Because the risk of failure in cables that deliver off-board power is high, the device comes with integrated protection features against fault conditions such as short to battery, reverse polarity, output short to ground, and overtemperature. The device incorporates a topology containing two back-to-back P-channel metal-oxide semiconductor field-effect transistors (MOSFETs). This PMOS topology eliminates the need for an external diode that is otherwise required to help protect against fault conditions that result in flow of reverse current. The device is designed to handle a 45V (absolute maximum) input voltage and survive the automotive load dump transient conditions.

A reference voltage applied at the adjustable input pin (ADJ/EN) is tracked with a very tight 6mV (max) tolerance across line, load, and temperature at the FB pin. This tight tracking tolerance enables the TPS7B4260-Q1 to deliver a power-supply voltage with high precision for loads up to 300mA. The reference voltage can be directly connected to the ADJ/EN pin or scaled down to lower values with the help of an external resistor divider at the ADJ/EN pin to a minimum of 2V. The output voltage can be made equal to the voltage at the ADJ/EN pin (± the tracking tolerance) by tying the FB pin directly to the OUT pin, or scaled to higher values with the help of a resistive voltage divider between the FB and the OUT pin.

The TPS7B4260-Q1 provides an effective buffer to the reference voltage of an ADC and securely transmits this voltage (or a scaled version thereof) over a long cable to power off-board sensors. If the sensor is ratiometric and the output is sampled by the ADC, the described features of the TPS7B4260-Q1 help significantly improve the reliability and accuracy of the sensor measurements.

By setting the ADJ/EN input pin low, the TPS7B4260-Q1 switches to standby mode in which the quiescent current consumption of the LDO reduces to less than 3.8µA.

The TPS7B4260-Q1 is a monolithic, integrated, low-dropout (LDO) voltage tracker. The device is available in an 8-pin HSOIC package. The TPS7B4260-Q1 is designed to provide power supply to off-board sensors in an automotive environment. The high 300mA current rating of the device potentially allows a single device to power multiple off-board sensors simulataneously. Because the risk of failure in cables that deliver off-board power is high, the device comes with integrated protection features against fault conditions such as short to battery, reverse polarity, output short to ground, and overtemperature. The device incorporates a topology containing two back-to-back P-channel metal-oxide semiconductor field-effect transistors (MOSFETs). This PMOS topology eliminates the need for an external diode that is otherwise required to help protect against fault conditions that result in flow of reverse current. The device is designed to handle a 45V (absolute maximum) input voltage and survive the automotive load dump transient conditions.

A reference voltage applied at the adjustable input pin (ADJ/EN) is tracked with a very tight 6mV (max) tolerance across line, load, and temperature at the FB pin. This tight tracking tolerance enables the TPS7B4260-Q1 to deliver a power-supply voltage with high precision for loads up to 300mA. The reference voltage can be directly connected to the ADJ/EN pin or scaled down to lower values with the help of an external resistor divider at the ADJ/EN pin to a minimum of 2V. The output voltage can be made equal to the voltage at the ADJ/EN pin (± the tracking tolerance) by tying the FB pin directly to the OUT pin, or scaled to higher values with the help of a resistive voltage divider between the FB and the OUT pin.

The TPS7B4260-Q1 provides an effective buffer to the reference voltage of an ADC and securely transmits this voltage (or a scaled version thereof) over a long cable to power off-board sensors. If the sensor is ratiometric and the output is sampled by the ADC, the described features of the TPS7B4260-Q1 help significantly improve the reliability and accuracy of the sensor measurements.

By setting the ADJ/EN input pin low, the TPS7B4260-Q1 switches to standby mode in which the quiescent current consumption of the LDO reduces to less than 3.8µA.

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